A calcareous sponge is any of a variety of sponge of the class Calcarea, with skeletons composed of spicules of calcium carbonate.
an example of calcareous sponge is SPONGE BOB!
The genus of the Calcareous sponge is Leucetta and the species is Floridian. The order is Clathrinida and the family is Leucettidae.
Sponges are not plants but animals .
The Yellow Calcareous sponge is Arthuria canariensis (formerly Clathrina canariensis, and also previously classified in the genera Nardoa, Leucosolenia, and Ascuris).Clathrina clathrus (the typical Clathrina species) is also yellow, bit has a dissimilar structure.
The three classes of sponge skeletons are siliceous or glass sponges (Class Hexactinellida), calcareous sponges (Class Calcarea), and sponges with a fibrous protein skeleton (Class Demospongiae). Each class has unique structural characteristics that support the sponge's body.
calcareous algae
calcareous alge adaptations
Calcareous oozes form when the calcium carbonate shells and skeletons of marine organisms, such as foraminifera and coccolithophores, accumulate on the ocean floor. Over time, these calcareous remains compact and cement together to form a sediment known as calcareous ooze.
Calcareous ooze
Any of numerous aquatic, chiefly marine invertebrate animals of the phylum Porifera, characteristically having a porous skeleton composed of fibrous material or siliceous or calcareous spicules and often forming irregularly shaped colonies attached to an underwater surface.
Cocolithophores.
calcareous alge adaptations